Coaxial cable antenna connector



Feb. 2, 1954 J. JIPP 2,668,239

COAXIAL CABLE ANTENNA CONNECTOR Filed Aug. 21, 1950 2 Sheets-Sheet lINVENTOR. JOHN JIPP BY W 4 1% ATTORNEY Feb. 2, 1954 J. JlPP 2,668,239

COAXIAL CABLE ANTENNA CONNECTOR Filed Aug. 21, 1950 2 Sheets-Sheet 2INVENTOR. JOHN .JIPP

ATTORNEY Patented Feb. 2, 1954 COAXIAL CABLE ANTENNA CONNECTOR JohnJipp, Houston, Tex., assignor to the United States of America asrepresented by the Scoretary of the Army Application August 21, 1950,Serial No. 180,687

1 Claim.

(Granted under Title 35, U. S. Code (1952),

sec. 266) The invention described herein may be manufactured and used byor for the Government for governmental purposes, without the payment ofany royalty thereon.

The present invention relates to a connector usable primarily with acenterfed, half-wave antenna, and more particularly for connecting suchantenna to a coaxial cable.

An object of the invention is to provide a connector which will preventand relieve undue strain on the antenna and associated elements.

Other objects and advantages will be apparent to those skilled in theart, after reading the following specification, with reference to theaccompanying drawings, in which:

Fig. 1 is an elevational view of the connector and associated parts,including a half-wave, center-fed antenna, a coaxial cable, andsupporting means (the connector and cable being drawn to an exaggeratedscale for clarity) Fig. 2 is a larger elevational view of the connectorand directly connected parts of Fig. 1;

Fig. 3 is an elevational view of the inner face of the back plate of theconnector, with the coaxial cable connected thereto;

Fig. 4 is an exploded view of the connector and related parts; and,

Fig. 5 is an elevational view of the inner face of the front plate ofthe connector.

The body of connector 5 comprises mutually opposing front and backplates 1 and 9 respectively, preferably made of an insulating material,of generally triangular form, suitably grooved on the inner face of eachto receive, between them, the feeding terminal of a depending coaxialcable It], and drilled to provide registering apertures for the variousfastening elements hereinafter mentioned.

Referring to Fig. 4, the cable I is shown as having secured, to itsupper end, upwardly inclined, and oppositely directed, bars II and I2,connected respectively to the outer and inner conductors of the cable.The ends of said bars H and !2 are apertured to receive, transversely,the threaded bolts l3 and I4 respectively, which are brazed or solderedto the bars II and !2 so as to be mechanically secured to and formelectrical contacts therewith. Cylindrical insulating sleeves l and I6are mounted on the respective bolts 13 and M on each side of the bars 3l and i2, and are of a combined length equal to the thickness of theconnector 5 by which they are received.

It will be seen from the upper left view of Fig. 4 that the inner faceof the back plate 9 is formed with a recess l8 partially threaded, orotherwise roughened, to receive half of the upper end portion of thecable I0 itself, with grooves 20 and 2| to receive the bars H and I2,and with apertures 22 and 23 for the reception of the rear insulatingsleeves l5 and [6. Reference to Fig. 5 shows that the front plate 1 hasa partially threaded recess 21 formed in its inner face to accommodatethe other half of the upper end portion of the cable It. The front plate1 has apertures 29 and 30, which register respectively with apertures 22and 23 of the back plate 9, and. receive th other insulating sleeves l5and [6.

The front and back plates 1, 9, are fastened together by screws 33 toclamp the coaxial cable between the plates, registering apertures 34being drilled in the plates to receive the screws.

Holes 35 in both front and back plates, at the upper corners thereof,register to receive bolts 36, on which clevises 31 are hingedly mounted,nuts 38 being the fastening elements on these bolts.

The half-wave antenna is secured, at its outer ends, in any usual orpreferred manner, to upright supports 40, and comprises halves or parts4i and 42, the inner ends of which are looped through the clevises 37and tied with Wires 43 to form closed loops 44, the terminal portions ofthe antenna being connected to the threaded bolts l3 and [4 by means ofwashers 45 and wing nuts 46, the coaxial cable in being therebyconnected to the antenna, and in such manner as to prevent or relieveundue stresses on the antenna, which was stated to be one of the objectsof the invention.

If it is desired, or necessary, to provide additional support for theconnector; or to provide means for hoisting the connector, a wire islooped through and secured to a clevis 5| which is secured to theconnector intermediate the clevises 37 by bolt 52 provided with a nut53.

While there has been described what is at present considered to be thepreferred embodiment of this invention, it will be obvious to thoseskilled in the art that various changes and modifications may be madetherein without departing from the invention, and it is, therefore,aimed in the appended claim to cover all such changes and modificationsas fall within the true spirit and scope of the invention.

What is claimed is:

A connector for coupling a center fed antenna, having inner and outerends, to a coaxial cable having inner and outer conductors, comprisingin combination, a body consisting of two substantially triangular platesof dielectric material secured in face-to-face abutment and beinginteriorly recessed and roughened to receive and grip said coaxial cablethrough one corner of said body, terminal means comprising two barselectrically connected respectively to said inner and outer conductorsof said coaxial cable, each of said bars having a transversely disposedelectrically conducting bolt therethrough and in electrical contacttherewith, two clevises swingably secured respectively to the other twocorners of said body, the inner end portions of said antenna extendingthrough said clevises respectively and being provided with tie means toform a closed loop through each clevis, and extending respectively toeach of said bolts with sufiicient slack to prevent mechanical strainupon the junc- JOHN JIPP.

5 References vCited in the file of this patent UNITED STATES PATENTSNumber Name Date 2,063,641 Van Billiard Dec. 8, 1936 10 2,299,213 FenerOct. 20, 1942 2,422,458 Amy et al June 17, 1947 OTHER REFERENCES ShortWave and Television, for January 1937, 15 page 537.

